The TimestampRoute property indicates how many hops should be recorded with time stamp information while the packet is enroute. ...

The TimestampRoute property indicates how many hops should be recorded with time stamp information while the packet is enroute. A Timestamp is the number of milliseconds that have passed since midnight UT. If the time is not available in milliseconds or cannot be provided with respect to midnight UT then any time may be inserted as a timestamp provided the high order bit of the timestamp field is set to one to indicate the use of a non-standard value. The default is zero.